KKA8395N Datasheet | Kodenshi AUK Group

FEATURES - Fully integrated filters - Alignment free - For use with baseband delay GENERAL DESCRIPTION The KKA8395N is a self-calibrating, fully integrated SECAM decoder. The IC should preferably be used in conjunction with the PAL/NTSC decoder KKA8362ANS (TDA8362A) or TDA8366 and with the switched capacitor baseband delay circuit ILA4661 (TDA4661, TDA4660). The IC incorporates HF and LF filters, a demodulator and an identification circuit (luminance is not processed in this IC). The IC needs no adjustments and very few external ponents are required. A highly stable reference frequency is required for calibration and a two-level sandcastle pulse for blanking and burst gating. 16 1 ORDERING INFORMATION KKA8395N DIP TA = -40° to 125°C QUICK REFERENCE DATA SYMBOL Vp V16(p-p) Tstg Tamb PARAMETER Positive supply voitage; pin 3 posite video input voltage (peak -to- peak value); pin 16 Storage temperature range Operation ambient temperature range MIN. MAX. UNIT 7.2 -25 -25 8.8 1.5 +150 +70 °C °C .. Fig.1 Block diagram. .. FUNCTIONAL DESCRIPTION The KKA8395N is a self-calibrating SECAM decoder designed for use with a baseband delay circuit. During frame retrace a 4.433619 MHz reference frequency is used to calibrate the filters and the demodulator. The reference frequency should be very stable during this period. The Cloche filter is a gyrator-capacitor type filter the resonance frequency of which is controlled during the calibration period and offset during scan; this ensures the correct frequency during calibration. The demodulator is a Phase-Locked Loop (PLL) type demodulator which uses the frequency reference and the bandgap reference to force the PLL to the required demodulation characteristic. The low frequency de-emphasis is matched to the PLL and is controlled by the tuning voltage of the PLL. A digital identification circuit scans the ining signal for SECAM (only line-identification is implemented). The...